U.S. patent application number 11/495512 was filed with the patent office on 2007-03-08 for electrical device with vents.
This patent application is currently assigned to ASUSTeK COMPUTER INC.. Invention is credited to Lun-Wei Kang.
Application Number | 20070053143 11/495512 |
Document ID | / |
Family ID | 37829857 |
Filed Date | 2007-03-08 |
United States Patent
Application |
20070053143 |
Kind Code |
A1 |
Kang; Lun-Wei |
March 8, 2007 |
Electrical device with vents
Abstract
An electrical device with vents is provided. The electrical
device comprises a case, a sliding part, a spring, and an
electromagnetic coil. The case comprises a first vent and a sliding
assembly. The sliding assembly is installed at one side or both
sides of the first vent, and the sliding part is movable along the
sliding assembly. The spring and the electromagnetic coil are
separately on each side of the sliding part. When this electrical
device detects that heat should be removed, the electromagnetic
coil is powered for generating magnetic force to stretch the spring
and move the sliding part to the first position to open the first
vents. When the electromagnetic coil is not powered, the spring
pulls the sliding part back to the second position to close the
first vent.
Inventors: |
Kang; Lun-Wei; (Taipei,
TW) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Assignee: |
ASUSTeK COMPUTER INC.
|
Family ID: |
37829857 |
Appl. No.: |
11/495512 |
Filed: |
July 31, 2006 |
Current U.S.
Class: |
361/678 |
Current CPC
Class: |
G06F 1/203 20130101 |
Class at
Publication: |
361/678 |
International
Class: |
H02B 1/56 20060101
H02B001/56 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 6, 2005 |
TW |
94130601 |
Claims
1. An electrical device with vents, the electrical device
comprising: a case with at least one first vent; a sliding assembly
located at one side of the first vent; a sliding part located in
the sliding assembly, and the sliding part slides between a first
position and a second position; a pulling mechanism located at a
first side along the moving direction of the sliding assembly, and
the pulling mechanism is used to pull the sliding part to the first
position; and a returning mechanism located at a second side along
the moving direction of the sliding assembly, and the returning
mechanism is used to pull the sliding part to the second position,
when the electrical device has to exhaust heat, the pulling
mechanism opens the first vent, and when the electrical device does
not have to exhaust heat, the returning mechanism closes the first
vent.
2. The electrical device with vents of claim 1, wherein the sliding
part comprises at least one second vent and at least one covering
part, and the second vent is a hole.
3. The electrical device with vents of claim 2, when the sliding
part is at the first position, the second vent aligns with the
first vent, and when the sliding part is at the second position,
the covering part aligns with the first vent.
4. The electrical device with vents of claim 1, wherein the
returning mechanism is a spring.
5. The electrical device with vents of claim 4, further comprising
a fixed part at the second side of the sliding part, and a first
end of the spring connects with the fixed part.
6. The electrical device with vents of claim 5, further comprising
a bolt on the case, and a second end of the spring is fixed on the
bolt.
7. The electrical device with vents of claim 1, wherein the pulling
mechanism is an electromagnetic coil.
8. The electrical device with vents of claim 1, further comprising
a magnetic object at the first side of the sliding part.
9. The electrical device with vents of claim 8, wherein the
magnetic object is a magnet.
10. The electrical device with vents of claim 8, wherein the
magnetic object is a magnetic metal.
11. The electrical device with vents of claim 1, further comprising
a plurality of notches on the sliding assembly, and the notches
construct a track for the sliding part.
12. The electrical device with vents of claim 1, wherein the
sliding part is a plank.
Description
RELATED APPLICATIONS
[0001] The present application is based on, and claims priority
from, Taiwan Application Serial Number 94130601, filed Sep. 6,
2005, the disclosure of which is hereby incorporated by reference
herein in its entirety.
BACKGROUND
[0002] 1. Field of Invention
[0003] The present invention relates to an electrical device with
vents, and especially relates to an electrical device that can open
and close the vents by setting conditions automatically.
[0004] 2. Description of Related Art
[0005] As information technologies and the computer industry
develop abundantly, portable devices, such as notebook computers,
are becoming sleeker and better miniaturized to keep with modern
fashion trends.
[0006] These delicate portable devices of high efficiency and small
size are plagued by high temperature chips and heat emission
inefficacy, which can induce the device functions to fail.
Therefore, the design of heat emission mechanisms becomes an
important topic.
[0007] Nowadays, heat emission mechanisms of electrical devices
generally comprise openings in the device cases. However, dust
intrudes the devices through these openings and can make the device
functions fail. The traditional solution of this problem is to
install a mask with holes to prevent the intrusive dust, but this
solution reduces the efficiency of heat emission. Therefore, an
electrical device with vents is needed, which prevents dust while
maintaining heat emission efficiency.
SUMMARY
[0008] It is an objective of the present invention to provide an
electrical device with vents, wherein the electrical device can
open or close a first vent by controlling a sliding part.
[0009] It is another objective of the present invention to provide
an electrical device with vents that prevents dust while
maintaining heat emission efficiency.
[0010] In accordance with the foregoing objectives, the present
invention offers a sliding part for a traditional electrical
device. When the electrical device is powered off or the electrical
device is powered on but has not reached a certain high
temperature, the sliding part is at a second position to close the
heat emission openings. Thus, the sliding part can prevent the
intruding dust that damages the circuitry inside the device case.
When the electrical device is powered on and reaches a certain high
temperature to emit heat, the sliding part is moved by a pulling
mechanism to a first position to open the heat emission openings.
Thus, the openings can allow the heat to emit outward. When the
temperature inside the case declines or the device is powered off,
the sliding part is moved back to the second position by a
returning mechanism to close the heat emission openings again.
[0011] An embodiment of this invention provides an electrical
device with vents. The electrical device comprises a case, a
sliding assembly, a sliding part, a pulling mechanism, and a
returning mechanism. The pulling mechanism of this embodiment is an
electromagnetic coil, and the returning mechanism of this
embodiment is a spring. There are at least one first vent and a
sliding assembly on the case, and the sliding assembly is located
at one side of the first vent. The sliding part is located at the
sliding assembly, and the sliding part slides between the first
position and the second position. The electromagnetic coil and the
spring are located at each side of the sliding part. When the
electrical device detects the condition of heat emission, the
electromagnetic coil is electrified to generate magnetic force for
pulling the sliding part to the first position to open the heat
emission openings; the spring is stretched at this moment. When the
electromagnetic coil is not electrified, the sliding part is
returned back to the second position by the spring to close the
heat emission openings.
[0012] In the embodiment of this invention, there are at least one
second vent and at least one covering part on the sliding part.
When the sliding part is at the first position, the second vent
aligns with the first vent to open the heat emission openings. When
the sliding part is at the second position, the covering part
aligns with the first vent to close the heat emission openings.
[0013] By the application of the controllable sliding part of this
invention to open and close the heat emission openings, dust
intrusion is prevented and heat emission efficiency is maintained.
When the electrical device does not reach the heat emission
condition, the sliding part closes the heat emission openings to
prevent the intruding dust. When the electrical device reaches the
heat emission condition, the sliding part is moved to open the heat
emission openings to allow the heat to escape. When the temperature
of the electrical device declines, the sliding part is moved back
to close the heat emission openings again. This invention can
prevent the problems associated with the always-open heat emission
openings of traditional designs while maintaining the desired heat
emission functionality.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The invention can be more fully understood by reading the
following detailed description of the preferred embodiment with
reference made to the accompanying drawings as follows:
[0015] FIG. 1 is an inner side view of the case according to one
preferred embodiment of this invention;
[0016] FIG. 2 is another inner side view of the case according to
one preferred embodiment of this invention; and
[0017] FIG. 3 is a perspective drawing according to one preferred
embodiment of this invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0018] Reference will now be made in detail to the present
preferred embodiments of the invention, examples of which are
illustrated in the accompanying drawings. Wherever possible, the
same reference numbers are used in the drawings and the description
to refer to the same or like parts.
[0019] FIG. 1 is an inner side view of the case according to one
preferred embodiment of this invention. There are at least one
first vent 140 and a sliding assembly 136 on the case 105. The heat
emission openings are constructed from first vents 140. The dotted
line indicates that the heat emission openings are closed. The
sliding part 130 can slide between a first position and a second
position along the sliding assembly 136. When the sliding part 130
is at the first position, the first vent 140 is opened. When the
sliding part 130 is at the second position, the first vent 140 is
closed. An electromagnetic coil 120 is located at the left side of
a first side 110 of the sliding part 130, and there is a fixed part
142 on a second side 111 of the sliding part 130. The fixed part
142 is used to connect a first end 146 of a spring 145; and a
second end 147 of the spring 145 is used to connect with a bolt 150
of the case 105.
[0020] In this embodiment, the sliding assembly 136 comprises a
plurality of notches or slides on the topside and the bottom side
of the first vent 140, wherein the notches construct a track for
the sliding part 130. In other embodiments of this invention, the
sliding assembly 136 can be constructed from a long notch at one
side of the first vent 140 to construct a track for the sliding
part 130. In FIG. 1, the spring 145 connects with the sliding part
130 by the connection between the fixed part 142 and the bolt 150,
and the spring 145 can connect with the sliding part 130 by screws
(not shown).
[0021] Still referring to FIG. 1, the sliding part 130 is a plank
structure with a plurality of second vents 126 and a plurality of
covering parts 128. The second vent 126 is holed structure. In this
embodiment, the sliding part 130 is at the second position, and the
covering parts 128 of sliding part 130 overlap the first vent 140
of the case 105 to make the first vent 140 closed. Furthermore,
there is a magnetic object 125 at a first side 110 of the sliding
part 130. The electromagnetic coil 120 can generate the magnetic
force to pull the magnetic object 125 for moving the sliding part
130 to open the heat emission openings (i.e., the first vent 140).
Alternatively, the sliding part 130 can be made from a magnetic
metal such that this device does not require the magnetic object
125.
[0022] FIG. 2 is another inner side view of the case according to
one preferred embodiment of this invention, whereinFIG. 2 differs
from FIG. 1 in that the first vent 140 is open. When the electrical
device reaches a heat emission condition, a switch (not shown) is
activated to make the electromagnetic coil 120 electrified to
generate a magnetic force greater than the force of spring 145. The
magnetic force pulls the magnetic object 125 (i.e., the sliding
part 130, a magnet or a magnetic metal) toward the electromagnetic
coil 120 to the first position and makes the second vent 126 align
with the first vent 140. Thus, the heat emission openings open and
the fan (not shown) pushes the heat outward. Meanwhile, the spring
145 is stretched.
[0023] When the temperature of the electrical device declines, the
switch (not shown) is deactivated to make the electromagnetic coil
120 unelectrified. The force of the stretched spring 145 returns
the sliding part 130 to the second position. Therefore, the heat
emission openings are closed and prevent dust and foreign matter
from intruding into the case.
[0024] FIG. 3 is a perspective drawing according to one preferred
embodiment of this invention.
[0025] In other embodiments, a magnet or an electromagnetic coil
can replace the spring 145 so long as the force generated by the
spring 145 or the magnet is smaller than the force generated by the
electromagnetic coil 120.
[0026] Although the present invention has been described in detail
with reference to certain preferred embodiments thereof, other
embodiments are possible. Therefore, the spirit and scope of the
appended claims should not be limited to the description of the
preferred embodiments contained herein.
[0027] It will be apparent to those skilled in the art that various
modifications and variations can be made to the structure of the
present invention without departing from the scope or spirit of the
invention. In view of the foregoing, it is intended that the
present invention cover modifications and variations of this
invention provided they fall within the scope of the following
claims and their equivalents.
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